Acting Perak police chief Hasnan Hassan said the incident occurred about 9.30am while the policemen, who were with the General Operations Force in Ulu Kinta, were undergoing routine training.
“The explosion was caused by a faulty boat engine and there were no other explosives involved in the incident,” he said in a statement here.
He said the injured policemen were sent to Seri Manjung Hospital for treatment and they were all reported to be in a stable condition.